From 0c5edb38ef6182032845b584d4a9245aa964ea0c Mon Sep 17 00:00:00 2001
From: j <j@mailb.org>
Date: Sat, 13 Feb 2016 15:01:16 +0530
Subject: [PATCH] ignore isbn 1-111-11111-1

---
 oml/meta/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/oml/meta/utils.py b/oml/meta/utils.py
index 3868468..49f0703 100644
--- a/oml/meta/utils.py
+++ b/oml/meta/utils.py
@@ -15,6 +15,8 @@ def to_isbn13(isbn):
             isbn = None
     except:
         isbn = None
+    if isbn == '9781111111113':
+        isbn = None
     return isbn
 
 def normalize_isbn(value):